Low thyroid function is also very common is our society due to many factors, including soil depletion, especially iodine and incomplete treatment, usually l-thyroxine as the sole drug.
Certain specific endocrine tests may not be done or overlooked based on practitioner experience. The use of Whole Thyroid rather than the synthetic l-thyroxine (T4) or liothyronine (T3) is more effective natural treatment which contain whole food components not specifically researched but are necessary for a “full” functioning thyroid gland. At times a specific “compounded” T3 may be necessary to “turn on” thyroid or reactivate thyroid function.